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Finding the Fourth Proportional to 571,656.04, 788,880.90 and 317,007.88

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Solution

The fourth proportional to 571,656.04, 788,880.90 and 317,007.88 is: 437,468.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,656.04 : 788,880.90 = 317,007.88 : x
  2. Step 2: Convert to fraction form
    571,656.04/788,880.90 = 317,007.88/x
  3. Step 3: Cross multiply
    571,656.04x = 788,880.90 × 317,007.88
  4. Step 4: Simplify right side
    571,656.04x = 250,081,461,681.49
  5. Step 5: Solve for x
    x = 250,081,461,681.49/571,656.04
  6. Step 6: Final answer
    x = 437,468.41

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.